src: Add DMA localagent

Change-Id: Ibcee814fbc9a904448eeb368a1a26bbb69cf54aa
Signed-off-by: Toshiaki Takahashi <takahashi.tsc@ncos.nec.co.jp>

1 files changed, 151 insertions, 0 deletions

diff --git a/src/dma/vendor/github.com/go-redis/redis/universal.go b/src/dma/vendor/github.com/go-redis/redis/universal.go
new file mode 100644
index 00000000..9e30c81d
--- /dev/null
+++ b/src/dma/vendor/github.com/go-redis/redis/universal.go
@@ -0,0 +1,151 @@
+package redis
+
+import (
+	"crypto/tls"
+	"time"
+)
+
+// UniversalOptions information is required by UniversalClient to establish
+// connections.
+type UniversalOptions struct {
+	// Either a single address or a seed list of host:port addresses
+	// of cluster/sentinel nodes.
+	Addrs []string
+
+	// The sentinel master name.
+	// Only failover clients.
+	MasterName string
+
+	// Database to be selected after connecting to the server.
+	// Only single-node and failover clients.
+	DB int
+
+	// Only cluster clients.
+
+	// Enables read only queries on slave nodes.
+	ReadOnly bool
+
+	MaxRedirects   int
+	RouteByLatency bool
+
+	// Common options
+
+	OnConnect          func(*Conn) error
+	MaxRetries         int
+	Password           string
+	DialTimeout        time.Duration
+	ReadTimeout        time.Duration
+	WriteTimeout       time.Duration
+	PoolSize           int
+	PoolTimeout        time.Duration
+	IdleTimeout        time.Duration
+	IdleCheckFrequency time.Duration
+	TLSConfig          *tls.Config
+}
+
+func (o *UniversalOptions) cluster() *ClusterOptions {
+	if len(o.Addrs) == 0 {
+		o.Addrs = []string{"127.0.0.1:6379"}
+	}
+
+	return &ClusterOptions{
+		Addrs:          o.Addrs,
+		MaxRedirects:   o.MaxRedirects,
+		RouteByLatency: o.RouteByLatency,
+		ReadOnly:       o.ReadOnly,
+
+		OnConnect:          o.OnConnect,
+		MaxRetries:         o.MaxRetries,
+		Password:           o.Password,
+		DialTimeout:        o.DialTimeout,
+		ReadTimeout:        o.ReadTimeout,
+		WriteTimeout:       o.WriteTimeout,
+		PoolSize:           o.PoolSize,
+		PoolTimeout:        o.PoolTimeout,
+		IdleTimeout:        o.IdleTimeout,
+		IdleCheckFrequency: o.IdleCheckFrequency,
+		TLSConfig:          o.TLSConfig,
+	}
+}
+
+func (o *UniversalOptions) failover() *FailoverOptions {
+	if len(o.Addrs) == 0 {
+		o.Addrs = []string{"127.0.0.1:26379"}
+	}
+
+	return &FailoverOptions{
+		SentinelAddrs: o.Addrs,
+		MasterName:    o.MasterName,
+		DB:            o.DB,
+
+		OnConnect:          o.OnConnect,
+		MaxRetries:         o.MaxRetries,
+		Password:           o.Password,
+		DialTimeout:        o.DialTimeout,
+		ReadTimeout:        o.ReadTimeout,
+		WriteTimeout:       o.WriteTimeout,
+		PoolSize:           o.PoolSize,
+		PoolTimeout:        o.PoolTimeout,
+		IdleTimeout:        o.IdleTimeout,
+		IdleCheckFrequency: o.IdleCheckFrequency,
+		TLSConfig:          o.TLSConfig,
+	}
+}
+
+func (o *UniversalOptions) simple() *Options {
+	addr := "127.0.0.1:6379"
+	if len(o.Addrs) > 0 {
+		addr = o.Addrs[0]
+	}
+
+	return &Options{
+		Addr: addr,
+		DB:   o.DB,
+
+		OnConnect:          o.OnConnect,
+		MaxRetries:         o.MaxRetries,
+		Password:           o.Password,
+		DialTimeout:        o.DialTimeout,
+		ReadTimeout:        o.ReadTimeout,
+		WriteTimeout:       o.WriteTimeout,
+		PoolSize:           o.PoolSize,
+		PoolTimeout:        o.PoolTimeout,
+		IdleTimeout:        o.IdleTimeout,
+		IdleCheckFrequency: o.IdleCheckFrequency,
+		TLSConfig:          o.TLSConfig,
+	}
+}
+
+// --------------------------------------------------------------------
+
+// UniversalClient is an abstract client which - based on the provided options -
+// can connect to either clusters, or sentinel-backed failover instances or simple
+// single-instance servers. This can be useful for testing cluster-specific
+// applications locally.
+type UniversalClient interface {
+	Cmdable
+	Watch(fn func(*Tx) error, keys ...string) error
+	Process(cmd Cmder) error
+	WrapProcess(fn func(oldProcess func(cmd Cmder) error) func(cmd Cmder) error)
+	Subscribe(channels ...string) *PubSub
+	PSubscribe(channels ...string) *PubSub
+	Close() error
+}
+
+var _ UniversalClient = (*Client)(nil)
+var _ UniversalClient = (*ClusterClient)(nil)
+
+// NewUniversalClient returns a new multi client. The type of client returned depends
+// on the following three conditions:
+//
+// 1. if a MasterName is passed a sentinel-backed FailoverClient will be returned
+// 2. if the number of Addrs is two or more, a ClusterClient will be returned
+// 3. otherwise, a single-node redis Client will be returned.
+func NewUniversalClient(opts *UniversalOptions) UniversalClient {
+	if opts.MasterName != "" {
+		return NewFailoverClient(opts.failover())
+	} else if len(opts.Addrs) > 1 {
+		return NewClusterClient(opts.cluster())
+	}
+	return NewClient(opts.simple())
+}